R Error: '$ operator is invalid for atomic vectors' - How to Fix

This error occurs because you cannot use the '$ operator on a numeric vector. It is generally used to access elements of a list or data frame by their name.

In this case, it seems that 'p_both_layout' is not a list or data frame, but rather a numeric vector. Therefore, you cannot use the '$ operator to access its elements.

To fix this error, you may need to check the type of the object 'p_both_layout' and make sure it is a list or data frame. Alternatively, you may need to use a different method to access its elements, such as indexing with square brackets ([]).